WO2021058220A1 - Procédé de surveillance de fonctionnements d'une balise et appareil de lecture approprié à cet effet - Google Patents

Procédé de surveillance de fonctionnements d'une balise et appareil de lecture approprié à cet effet Download PDF

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Publication number
WO2021058220A1
WO2021058220A1 PCT/EP2020/073800 EP2020073800W WO2021058220A1 WO 2021058220 A1 WO2021058220 A1 WO 2021058220A1 EP 2020073800 W EP2020073800 W EP 2020073800W WO 2021058220 A1 WO2021058220 A1 WO 2021058220A1
Authority
WO
WIPO (PCT)
Prior art keywords
balise
vehicle
signal
interface
reader
Prior art date
Application number
PCT/EP2020/073800
Other languages
German (de)
English (en)
Inventor
Andreas Liebig
Original Assignee
Siemens Mobility GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Mobility GmbH filed Critical Siemens Mobility GmbH
Priority to EP20771451.0A priority Critical patent/EP4034448A1/fr
Priority to AU2020354322A priority patent/AU2020354322B2/en
Priority to CN202080079203.8A priority patent/CN114728666A/zh
Publication of WO2021058220A1 publication Critical patent/WO2021058220A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/08—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically
    • B61L3/12—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves
    • B61L3/125—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves using short-range radio transmission
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L15/00—Indicators provided on the vehicle or train for signalling purposes
    • B61L15/0018—Communication with or on the vehicle or train
    • B61L15/0027—Radio-based, e.g. using GSM-R
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L15/00—Indicators provided on the vehicle or train for signalling purposes
    • B61L15/0081—On-board diagnosis or maintenance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
    • B61L27/50—Trackside diagnosis or maintenance, e.g. software upgrades
    • B61L27/53—Trackside diagnosis or maintenance, e.g. software upgrades for trackside elements or systems, e.g. trackside supervision of trackside control system conditions

Definitions

  • the invention relates to a method for monitoring functions of a balise, in which at least one balise signal transmitted by the balise is read out with a reading device via a first interface and is output at a second interface for further processing.
  • the invention also relates to a reading device for balises and a vehicle in which such a reading device is installed.
  • the invention relates to a computer program product and a
  • Provision device for this computer program product the computer program product being equipped with program instructions for carrying out this method.
  • balise reader for reading, which is integrated in a balise onboard unit, a balise OBU.
  • BTM Balise Transmission Module.
  • the balise antenna continuously emits an electromagnetic signal at 27.095 MHz to activate the balise.
  • the balise responds with your response signal at 4.2 MHz (Eurobalise) or 4.5 MHz (KER-Balise as the predecessor system of the Eurobalise, which is still in use).
  • the Eurobalise uplink signal is specified in [SUBSET-036].
  • the uplink signal of the KER balises is specified in [SUBSET-100].
  • ERTMS Solutions offers a complete balise reader, which only has a diagnostic function. It is preferably used in specialized maintenance trains, but this means that statements about the functionality of balises can only be determined when the maintenance train is used. However, this is only possible to a limited extent for reasons of cost and also to comply with the timetable.
  • the object of the invention is to provide a method for monitoring the functions of balises which can perform the monitoring reliably and is inexpensive to implement.
  • a further object of the invention is to specify a reading device for balises or a vehicle with such a reading device, with which the above-mentioned method can be carried out.
  • This task is matched with the one specified at the beginning
  • the vehicle balise antenna activates the balise via a third interface with an activation signal
  • the embodiment of the method according to the invention has the advantage that the reader can be arranged parallel to the vehicle balise antenna of the balise OBU.
  • a parallel arrangement is understood to mean that the reader, in addition to the functional unit of the balise OBU (with
  • Vehicle balise antenna represents its own functional unit. In other words, these two become functional units operated independently of one another and communicate with one another via an interface if required.
  • balise and also the balise OBU which function according to a defined standard, do not have to be modified in terms of their function.
  • the function of the reader is ensured via interfaces that the balise or the balise antenna of the vehicle make available anyway.
  • This advantageously also enables vehicles to be retrofitted which, according to the state of the art, are already equipped with a balise antenna on the vehicle for communication with the balises installed in the route, since the reading device has an in relation to the balise antenna and / or the balise onboard unit represents a self-sufficient functional unit.
  • this functional unit is connected to the balise antenna and / or the balise onboard unit via interfaces, preferably radio interfaces.
  • the following problems are additionally solved according to the invention: a) For the early detection of failures of the balise, detailed analyzes of the response signal of the balise are necessary. These analyzes can be carried out by the reading device according to the invention which is specialized for this task. b) Some parameters of the response signal of the balise depend on the installation conditions (e.g. the level of the response signal is a function of the installation height) and they can fluctuate over time (e.g. due to temperature fluctuations and weather influences (snow or water on the balise) and also on the dynamically varying Position of the vehicle antenna (eg rebound). The reading device according to the invention can mitigate these effects, since it can be specialized in the reading task.
  • a more sensitive antenna can be used in order to be able to reliably receive even weak signals.
  • it makes sense to evaluate the Carry out parameters over a larger number of passes (statistical evaluation). This allows fluctuations in the generation of measured values to be recorded and taken into account can be done in the cloud because this is where the typical and conspicuous data from many reading devices are available. A conspicuous balise can be discovered more quickly by evaluating many readers than by observing one reader.
  • Information on abnormalities must be passed on to route maintenance quickly. This can be ensured by the fact that the reading device according to the invention has a direct interface to a cloud or a control center, so that any error messages can be forwarded immediately via a connection provided for this purpose.
  • the preprocessing of the reader also serves to reduce the amount of data to be transferred to the cloud.
  • the terms “create”, “calculate”, “calculate”, “determine”, “generate”, “configure”, “modify” and the like preferably relate to actions and / or Processes and / or processing steps that change and / or generate data and / or convert the data into other data.
  • the data are in particular available as physical quantities, for example as electrical impulses or also as measured values.
  • the necessary instructions / program commands are summarized in a computer program as software.
  • the terms “receive” “send out”, “import”, “read out”, “transmit” and the like refer to the interaction of individual hardware components and / or software components via interfaces. or in terms of software, for example as an interaction between individual program modules or program parts of one or more computer programs.
  • “computer-aided” or “computer-implemented” can be understood to mean, for example, an implementation of the method in which one or more computers executes or executes at least one method step of the method.
  • the term "computer” is to be interpreted broadly, it covers all electronic devices Data processing properties. Computers can thus, for example, be personal computers, servers,
  • a “memory unit” can be understood to mean, for example, a computer-readable memory in the form of a random access memory (RAM) or data memory, such as a hard disk or a data carrier.
  • RAM random access memory
  • data memory such as a hard disk or a data carrier.
  • a “cloud” is to be understood as an environment for “cloud computing” (German computer cloud or data cloud). What is meant is an IT infrastructure that is made available via a network such as the Internet. It usually contains storage space, computing power or application software as a service without these having to be installed on the local computer using the cloud. Offer and use of these services take place exclusively through technical interfaces and protocols, for example by means of a web browser.
  • the range of services offered within the scope of cloud computing covers the entire spectrum of information technology and includes infrastructure, platforms and software, among other things.
  • a “processor” can be understood to mean, for example, a machine such as a sensor for generating measured values or an electronic circuit.
  • a processor can in particular be a central processing unit (CPU), a microprocessor or a microcontroller, for example an application-specific integrated circuit or a digital signal processor, possibly in combination with a memory unit for storing program commands, etc. .
  • a processor can also be, for example, an IC (integrated circuit), in particular an FPGA (field programmable gate array) or an ASIC (application-specific integrated circuit), or a DSP (Digital signal processor, English Digital Signal Processor) act.
  • a processor can also be understood to be a virtualized processor or a soft CPU. For example, it can also be a programmable processor that is equipped with a configuration for executing a computer-aided method.
  • a first computer CI which receives the balise signal via the first interface S1, analyzes at least the uplink signal of the balise as a balise signal and determines the characteristic parameters of the uplink signal, in particular also after electromagnetic interference searches for the vehicle and the route.
  • the uplink signal of the balise is the signal that the balise sends to the vehicle, which is received by the vehicle antenna.
  • This uplink signal contains, among other things, a balise identifier, which not least provides information about the location of the vehicle (namely, the location of the balise is known). It is therefore particularly important that there are no errors in the transmission of the uplink signal, since an unequivocal location of the vehicle during the passage over the balise could not be ensured in this way.
  • Electromagnetic interference can also be searched for because the vehicle and the route, if these cause electromagnetic interference, could also interfere with the transmission between the balise and the vehicle.
  • the uplink level is the level of the balise signal. This must be high enough so that the vehicles driving over the balise in some cases at high speed can receive the relevant signal from the balise.
  • the monitoring of the uplink level thus advantageously offers a possibility of assessing the probability with which a transmitted uplink signal cannot be received by the vehicle antenna.
  • the start-up time is the reaction time of the balise after it has been supplied with sufficient energy. Since this point in time is not known by the vehicle, this time can be estimated using the symmetry that results from the downlink and the uplink. This test criterion allows a statement to be checked as to whether the reaction time of the balise after its activation is sufficient to send the uplink signal in good time so that it can still be received by the vehicle antenna.
  • the FSK frequencies are the frequencies of the balise signal.
  • the balise transmits 0-bits through a signal at 3.9 MHz and 1-bits at 4.5 MHz.
  • the frequencies must be adhered to in order to be able to reliably identify the uplink signal. If the frequencies deviate, this goal is no longer guaranteed in case of doubt.
  • the data rate is the data rate of the balise signal. Compliance with the data rate guarantees that the content to be transmitted can be transmitted to the vehicle in the time available. If the data rate deviates too much from the target value, the balise OBU may no longer be able to receive the information from the balise without errors.
  • the receiver's data rate window is limited.
  • bit errors are the number or the proportion of defective bits in the balise signal.
  • a certain error rate can still be represented by the provision of redundant signals and by error correction mechanisms when evaluating the uplink signal. Beyond a certain threshold, however, exists the risk of incorrect interpretations of the signal during the transmission and evaluation of the signals. To avoid this, the reader can output a corresponding error if necessary.
  • the activation signal is also read out with the reading device via a fourth interface S4.
  • Reading out the activation signal advantageously makes it possible to also determine errors that occur due to the balise onboard unit. It can be ruled out that incorrect functioning of the balise is indirectly caused by errors that actually originate from the vehicle. In this case, the vehicle must be repaired and can be output by the reader via the second interface.
  • the reading device transmits at least the balise signal via a seventh interface to a first computer arranged outside the vehicle or via the second interface to a cloud.
  • the transmission to the outside ensures that the determined data can be processed immediately in a higher-level unit such as a control center. At the same time, it is possible to compare the transmitted data with the data collected by other vehicles. This makes it possible to rule out the possibility that the transmission of errors may also be caused by a defective vehicle or a defective reader. This also provides greater security against misinterpretation of the measurement results in their entirety.
  • a mobile radio standard in particular GPRS
  • IOT transmission standard in particular LTE-M and / or NB-IOT
  • the balise signal is temporarily stored in a first memory device before transmission.
  • the storage of the data (balise signal) in a first storage device makes it possible, during operation of the reading device, to compare data that were recorded by a balise at different times. This makes it possible to display and identify slow changes in the behavior of the balise concerned. This is particularly advantageous for predictive maintenance, with balises or their components being able to be replaced before they finally fail. Ultimately, in these cases, the reader does not output a “non-function”, but rather a “bad function” via the second interface.
  • the balise signal is processed or at least preprocessed in a first computer integrated in the reader, and the preprocessed or processed balise signal is temporarily stored and / or output via the second interface.
  • This advantageously enables rapid processing of the recorded data. Above all, this does not depend on the transmission of the data via the second interface, which, as already explained, can be impaired by the transmission quality in the radio network used.
  • the preprocessing can also reduce the load in the transmission network. For example, it is possible to only send signals via the second interface if a non-function or a bad function has already been determined. Because only in such a case does the need for maintenance or replacement of the balise arise. The transmission network to which the second interface belongs would then be relieved of the reports that the balise is working properly.
  • a need for measures is derived from the transmitted balise signals and / or preprocessed balise signals and / or the processed balise signals and these are stored in a second memory device for this purpose.
  • This embodiment of the invention is particularly advantageous since a division of labor can take place between a first computer, which already enables preprocessing of the data in the reader, and a second computer, for example in a control center (alternatively in the cloud).
  • the second computer can advantageously carry out a final processing of the data, in particular a comparison with already existing data from previous transmission signals of the reader.
  • the stated object is alternatively also achieved according to the invention with the initially stated claim (reading device) in that it is designed for installation in a vehicle parallel to a vehicle balise antenna, a fourth interface being provided for receiving an activation signal sent out for the balise by the vehicle -Balise antenna.
  • balise onboard unit and the reading device can be accommodated in two separate housings or in two separate housing spaces of a housing.
  • the stated object is alternatively also achieved according to the invention with the initially specified subject matter (vehicle) in that the reader is installed in the vehicle parallel to a vehicle balise antenna, a fourth interface being provided for receiving an activation signal sent out for the balise by the vehicle Beautyse antenna.
  • the reading device or the vehicle with the reading device is set up to carry out a method according to one of the above-mentioned claims directed to the method.
  • Program instructions for carrying out the aforementioned according to the invention are claimed, the method according to the invention and / or its exemplary embodiments being able to be carried out by means of the computer program product.
  • a provision device for storing and / or providing the computer program product.
  • the provision device is, for example, a data carrier that stores and / or provides the computer program product.
  • the provision device is, for example, a network service, a computer system, a server system, in particular a distributed computer system, a cloud-based computer system and / or virtual computer system, which the computer program product preferably stores and / or provides in the form of a data stream.
  • the provision takes place, for example, as a download in the form of a program data block and / or command data block, preferably as a file, in particular as a download file, or as a data stream, in particular as a download data stream, of the complete computer program product.
  • This provision can, for example, also take place as a partial download, which consists of several parts and, in particular, is downloaded via a peer-to-peer network or made available as a data stream.
  • Such a computer program product is read into a system, for example, using the supply device in the form of the data carrier and executes the program commands so that the method according to the invention is executed on a computer or the creation device is configured in such a way that it generates the workpiece according to the invention.
  • FIG. 1 shows an embodiment of the vehicle according to the invention with an embodiment of the reader according to the invention in a schematic cross section
  • FIG. 2 shows an embodiment of the reader according to the invention, an embodiment of the vehicle according to the invention being indicated by dash-dotted lines, as a block diagram.
  • the arrangement of the reader could be shown in FIG. 1, an exemplary embodiment of the method according to the invention being used in the arrangement,
  • FIG. 3 an embodiment of the method according to the invention, carried out according to FIG. 2, as a flow diagram, the components of the arrangement according to the invention being shown in dash-dotted lines.
  • FIG. 1 shows a vehicle FZ which is standing with its wheels RD on a track GL with rails SI and sleepers SW.
  • a balise BL which has a balise antenna BLA, is arranged in the track.
  • the balise BL can communicate with a balise onboard unit BOBU via the balise antenna BLA.
  • This has a vehicle balise antenna FZBA for this purpose.
  • a reader LG is attached to the vehicle FZ, which has a reader balise antenna LGBA.
  • the reader LG can also communicate with the balise BL via this reader balise antenna LGBA. This also uses the balise antenna BLA.
  • FIG. 1 shows a cloud CLD in which services for operating the balise onboard unit BOBU and the reader LG are made available.
  • these services can also be used by a control center LZ.
  • the control center LZ is equipped with a second computer C2 and a second storage device SE2.
  • the reader LG is equipped with a reader antenna LGA and the control center with a control center antenna LZA (alternatively, the control center LZ can also be equipped with a cable connection, as this is stationary). Details of the course of the method are given below in relation to FIG. 2 described.
  • the balise BL can be activated by means of the balise antenna BLA via a third interface S3 through the vehicle balise antenna FZBA (the radio signal transmitted via the third interface S3 from the
  • the reading device LG has the reading device balise antenna LGBA and can be activated, for example, by the activation signal transmitted by the balise onboard unit BOBU via an interface S4. Alternatively, an external power supply is possible, since the reader LG can be supplied with power by the vehicle FZ. In any case, the activated reading device LG can also evaluate the signal transmitted by the balise BL using the balise antenna BLA and received by the reading device balise antenna LGBA via an interface S1. To For this purpose, the reading device LG has a computer CI, with calculation results and measured values being able to be stored in a first memory device SEI.
  • both the balise onboard unit BOBU communicate via a vehicle antenna FZA and the reader LG via the reader antenna LGA with the cloud CLD, the reader antenna LGA using the interface S2 and the vehicle antenna FZA using an interface S5.
  • the signals from the reading device LG can also be sent via the vehicle antenna FZA and the interface S5.
  • control center LZ can call up the data collected about various balises in the rail network via the cloud CLD.
  • the control center LZ uses the control center antenna LZA, which operates an interface S6 to the cloud CLD.
  • a seventh interface S7 is shown between the reader antenna LGA and the control center antenna LZA.
  • FIG. 3 shows the sequence of the process in more detail.
  • the method starts with an activation signal ACT, which is transmitted by the vehicle balise antenna FZBA.
  • Interface S3 or interface S4 is used for this.
  • the balise BL then carries out a sending step SEND1, in which it sends its identification code to the vehicle balise antenna FZBA, which enables the vehicle FZ to be precisely located.
  • the interface S3 is used for this, the balise onboard unit BOBU receiving this identification signal in a recording step REC3.
  • the identification signal of the balise BL is also sent via the interface S1 to the reader and via the interface S3 to the balise OBU, where it triggers a recording step REC1 and REC3.
  • the signals are processed here.
  • the processing can be, for example, a check of the functions of the balise BL.
  • the balise onboard unit BOBU sends the calculated or recorded data to the cloud CLD via the interfaces S5 and S2 in a sending step SEND2 (this step is optional) and the reading device LG in a sending step SEND3.
  • the steps mentioned can also operate the interfaces S7, S8 in order to send the data straight away to the control center LZ.
  • the control center LZ can obtain this data from the cloud CLD, the sixth interface S6 being used for this.
  • a fourth recording step REC4 is carried out by the control center LZ.
  • the control center LZ can then carry out a third calculation step CAL3, the data being processed.
  • the storage of the data by the first memory device SEI and the second memory device SE2 are shown in FIG. 3 not shown in detail. However, these storage steps can be carried out at any time as intermediate storage steps in order to save data before or after processing it. List of reference symbols

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Traffic Control Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

L'invention concerne un procédé de surveillance de fonctionnements d'une balise (BL). Au moyen d'un appareil de lecture (LG), au moins un signal de balise émis par la balise (BL) est lu par l'intermédiaire d'une première interface (S1) et est délivré à une deuxième interface (S2) à des fins de traitement ultérieur. L'appareil de lecture (LG) fonctionne en simultané avec une antenne balise embarquée (FZBA) dans un véhicule (FZ), ladite antenne activant la balise (BL) au moyen d'un signal d'activation par l'intermédiaire d'une troisième interface (S3). La balise activée (BL) envoie le signal de balise à l'antenne balise embarquée (FZBA) et l'appareil de lecture (LG) lit le signal de balise. L'invention concerne également un appareil de lecture (LG) de balises (BL) ainsi qu'un véhicule (FZ) comprenant l'appareil de lecture (LG) de balises (BL) et une antenne de balise (BLA).
PCT/EP2020/073800 2019-09-25 2020-08-26 Procédé de surveillance de fonctionnements d'une balise et appareil de lecture approprié à cet effet WO2021058220A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP20771451.0A EP4034448A1 (fr) 2019-09-25 2020-08-26 Procédé de surveillance de fonctionnements d'une balise et appareil de lecture approprié à cet effet
AU2020354322A AU2020354322B2 (en) 2019-09-25 2020-08-26 Method for monitoring functions of a balise and reader suitable therefor
CN202080079203.8A CN114728666A (zh) 2019-09-25 2020-08-26 用于监视应答器的功能的方法以及适用于此的读取装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019214637.6A DE102019214637A1 (de) 2019-09-25 2019-09-25 Verfahren zum Überwachen von Funktionen einer Balise und hierfür geeignetes Lesegerät
DE102019214637.6 2019-09-25

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Publication Number Publication Date
WO2021058220A1 true WO2021058220A1 (fr) 2021-04-01

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EP (1) EP4034448A1 (fr)
CN (1) CN114728666A (fr)
AU (1) AU2020354322B2 (fr)
DE (1) DE102019214637A1 (fr)
WO (1) WO2021058220A1 (fr)

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CN115276710A (zh) * 2022-06-22 2022-11-01 交控科技股份有限公司 应答器传输系统、应答器定位补偿方法、设备及介质

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CN107046446A (zh) * 2017-06-12 2017-08-15 陕西西北铁道电子有限公司 一种btm设备检测系统及方法
CN115276710A (zh) * 2022-06-22 2022-11-01 交控科技股份有限公司 应答器传输系统、应答器定位补偿方法、设备及介质
CN115276710B (zh) * 2022-06-22 2024-01-30 交控科技股份有限公司 应答器传输系统、应答器定位补偿方法、设备及介质

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